40780-80-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 40780-80-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 4,0,7,8 and 0 respectively; the second part has 2 digits, 8 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 40780-80:
(7*4)+(6*0)+(5*7)+(4*8)+(3*0)+(2*8)+(1*0)=111
111 % 10 = 1
So 40780-80-1 is a valid CAS Registry Number.